1. A green plant that makes its own food by photosynthesis is called a:A parasite producerC consumer

2. In a food chain, the organism that eats the producer is the:A carnivoreB second order consumerC primary consumer

3. An organism that eats both plant and animal matter is called the:A producerB carnivoreC omnivore

4. An example of a scavenger that eats animals that are already dead is a:A crabB whaleC shark

5. An organism such as bacteria and fungi that breaks down dead organisms and their wastes is a:A producerB parasiteC decomposer

6. Each level of a food chain is called a:A chain levelB trophic or feeding levelC producer level

7. At each level of a food chain, energy is lost mostly in the form of:A grass not eaten by the consumersB light energy used by plantsC heat of organisms

8. Animals with a constant body temperature such as mammals and birds require more food than do animals with a changing body temperature such as reptiles and fish. Why?A Much of the food is utilised to produce heat to keep warmB Warm-blooded animals waste more food than cold-blooded animalsC Cold-blooded animals digest their food more efficiently than warm-blooded animals

9. The most energy-efficient method to feed large human populations such as in China is to eat:Amostly rice and vegetables with little meatBlarge amounts of meat with few vegetablesClarge amounts of fish with little rice

10. A network of interrelated food chains in a given area is called a food: Aweb Bchain Cnetwork

11. Biomass is the: Aweight of organisms in the entire food chain in a given area Btotal mass of organisms in an entire food web Ctotal dry mass of the organisms in each level of a food chain

12. The process by which carbon dioxide is removed from the atmosphere by living organisms is: Arespiration Bphotosynthesis Ccombustion

13. The scientific name given to the falling of water through the atomosphere as rain, snow, sleet or hail is: Aevaporation Bcondensation Cprecipitation

14. Transpiration is the: Aintake of water to balance water lost through perspiration Bloss of water through the leaves of plants Crain water seepage through the soil

15. Organisms in the ecosystem that are responsible for the recycling of plant and animal wastes are: Adecomposers Bpredators Ccompetitors